Auxiliary bicycle handlebar attachment



FIG. 1 is a perspective view of an auxiliary bicycle handlebar attachment showing my new design;

FIG. 2 is an end elevation view thereof;

FIG. 3 is an end elevation view opposite that shown in FIG. 2;

FIG. 4 is a top plan view thereof;

FIG. 5 is a side elevation view thereof, the opposite side being a mirror image of that shown. 

The ornamental design for an auxiliary bicycle handlebar attachment, as shown. 